Location History:
- Anjo, JP (1989)
- Nagoya, JP (1994 - 1996)
Company Filing History:
5 out of 3,252 
1 out of 1 Years Active: 1989-1996
Title: Michio Hisanaga: Innovator in Optical Technology
Introduction
Michio Hisanaga is a prominent inventor based in Nagoya, Japan. He has made significant contributions to the field of optical technology, particularly in the development of varifocal lenses and optical data readers. His innovative work has led to the granting of 5 patents.
Latest Patents
One of Hisanaga's latest patents is a varifocal lens designed to control variable focal lengths through electric signals. This lens is particularly suitable for use in barcode readers. The design includes a first pressure chamber created between a glass substrate and a transparent elastic film. The elastic film faces the planar glass substrate, which has parallel surfaces with a spacer in between to form the pressure chamber. A pump is positioned adjacent to this chamber, allowing for the charging of an operating liquid, which enables the lens to achieve a variable focal length. The film's thickness distribution is engineered to create a spherical plane at the center and a third-order curved surface at the periphery, resulting in a lens free of aberration.
Another notable patent involves an optical data reader that can quickly change the condensing position of light beams. This device includes a light beam production mechanism and a system for altering the condensing position before the light beam reflects off a target, such as a barcode. The system can utilize either a variable focus lens or mirror, both of which adjust their curvature in response to electrical signals. This innovation allows for rapid and continuous adjustments to the condensing position, enhancing the efficiency of optical data reading.
Career Highlights
Hisanaga has worked with notable companies, including Nippondenso Co., Ltd. and the Science and Technology Agency National Institute. His experience in these organizations has contributed to his expertise in optical technologies and innovations.
Collaborations
Some of Hisanaga's coworkers include Tadashi Hattori and Tukasa Koumura. Their collaborative efforts have likely played a role in advancing the projects they have worked on together.
Conclusion
Michio Hisanaga's contributions to optical technology through his innovative patents and career experiences highlight his role as a significant inventor in the field. His work continues to influence advancements in optical devices and applications.
Inventor’s Patent Attorneys refers to legal professionals with specialized expertise in representing inventors throughout the patent process. These attorneys assist inventors in navigating the complexities of patent law, including filing patent applications, conducting patent searches, and protecting intellectual property rights. They play a crucial role in helping inventors secure patents for their innovative creations.